DEFS011 FTI Drum Pump Kit Exploded View Diagram Repair Parts Breakdown. Finish Thompson EF Series Stainless Steel Sealless, Economy Medium Performance Tube EFS-40-EP with S4 Air Motor PDF Manual. Shaft Replacement Kit, Coupling Insert, Coupling Half, Bearing. Seal, O-Ring, Inner Tube, Shaft Sleeve, Intake Tube, Impeller, Diffuser Cover. Bushing, Nozzle, Wall Mount Bracket, Diffuser Kit, Intake Tube Assembly, Grounding Screw, Lockwasher, Static Protection Kit.